To make it more usable on Andriod with Opaque.

There is enough space in the toolbar, so this is good enought for now.
Also remove some dead code, and re-ordered HDEdit to use both columns, which
looks better inside the CreateWizard.

//fixme : enable/disable splitbutton
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>

Make HA more stable if pmxcfs is not reachable for a short period (for example
if you restart the service). Some users reported they get empty VM list
when there is very high load on a server.

This is easier to read.

Our REST API cannot handle that.

tested with classic linux interfaces/bridge and openvswitch interfaces
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>